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Giménez, A. and Reglero, V. and Castro Rubio, Elisa de and Fernández Figueroa, María José (1991) A uvbyß survey of northern-hemisphere active binaries .2. The m_1 deficiency. Astronomy & Astrophysics, 248 (2). pp. 563-573. ISSN 0004-6361
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Official URL: http://adsabs.harvard.edu/abs/1991A%26A...248..563G
Abstract
New photometric observations, using the uvby and Hß systems of 72 northern-hemisphere active binaries are discussed in order to explain the main characteristics of their spectral light intensity distribution. Values of the parameter δm_1 range from 0.0 to 0.3 mag, which cannot be explained in terms of metal underabundance alone. The existence of some mechanism, responsible for such a colour-index anomaly, is thus suggested and is found to be in close relation with the involved degree of solar-type activity.
Item Type: | Article |
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Additional Information: | © EDP Sciences. |
Uncontrolled Keywords: | Main-Sequence Stars; Photometry; Calibrations; Systems |
Subjects: | Sciences > Physics > Astrophysics Sciences > Physics > Astronomy |
ID Code: | 32708 |
Deposited On: | 04 Aug 2015 09:15 |
Last Modified: | 10 Dec 2018 15:05 |
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